White Mountains Insurance Group, Ltd. share price today

White Mountains Insurance Group, Ltd.'s share price was $2,376 at the close on 4 November 2026. It has been rising for 4 weeks. That is 11.0% above its average price over the last 200 trading days. In the last 52 weeks it traded between $1,908 and $2,376, and at that close it was at the high of that range.

A share price tends to move through four phases: moving sideways (stage 1), rising (stage 2), stalling near a high (stage 3) and falling (stage 4). Today White Mountains Insurance Group, Ltd. is in stage 2. The phase helps read everything below.

Over the past 13 weeks it has done better than the S&P 500, and it has stayed ahead for 2 weeks in a row.

Over the last 10 years the share price moved +186% while the S&P 500 moved +261%, so it is behind the index over that whole period. The chart above shows the 13-week comparison for every week.

This page treats a rise as over when the price closes below its 200-day average on two Fridays in a row.

White Mountains Insurance Group, Ltd. has 3 quarters of declared dividends on file, too few for a 12-month total. The most recent declaration was $1.00 for Mar 2026.

A dividend is cash paid out for each share. The 12-month total is the four most recent quarters added together.

White Mountains Insurance Group, Ltd. declared a dividend in 3 of the last 12 reported quarters, most recently $1.00 for Mar 2026. That is fewer than four quarters, so no 12-month total is shown.

White Mountains Insurance Group, Ltd. is not in the Nasdaq 100, the S&P 500 or the Dow Jones 30, and is not on the US tech stocks list.

White Mountains Insurance Group, Ltd. earned $231 M of net profit in the Jun 2026 quarter, +41.3% on the same quarter a year earlier. Full-year FY25 profit was $1.2 B. That is 27.4% of the quarter's revenue. The same quarter a year earlier earned $164 M. 3 of the last 12 reported quarters were loss-making.

Net profit is what is left after every cost, interest and tax. Earnings per share, dividends and book value all grow from it.

For the full year, FY25 profit was $1.2 B (+323.0% on the year before).

Why profit moved: revenue changed +22.5% on a year earlier and the margin moved +3.7 percentage points. Most of the change came from keeping more of each sale.

On average over the last four quarters, profit changed −43.2% and revenue +28.3%. Profit is growing slower than sales: rising costs are taking part of the growth.

White Mountains Insurance Group, Ltd. reported $845 M of income in the Jun 2026 quarter, +22.5% on the same quarter a year earlier. Over 4 years it has grown 47.2% a year on average. The last full year, FY25, came in at $2.9 B. The last four reported quarters add to $3.0 B.

For a bank, revenue is everything it earns: interest on its loans plus fees from its businesses.

FY25 revenue was $2.9 B, +22.6% on the year before.

Recent pace: the last four quarters grew +28.3% on average, against 47.2% a year over the longer run, so this year is growing slower than its own long-run rate.

Is growth speeding up? Revenue over the last 12 months grew +15.5%, against +13.8% a year over the last 8 quarters (stabilising); profit over the last 12 months grew +257.8%, against +45.6% a year (accelerating).

White Mountains Insurance Group, Ltd.'s net margin was 27.4% in the Jun 2026 quarter, 3.7 percentage points higher than the same quarter a year ago. Across 5 years it has been between −52.4% and 61.5%. The latest quarter is within that range.

Net margin is what the bank keeps from every $100 of revenue after every cost, provision for bad loans and tax. With big fee businesses in the mix, it is the clearest margin we can read for this bank.

Why: the net margin move is clear, but the cost details behind it are not in our data, so we show the move without guessing the reason.

White Mountains Insurance Group, Ltd. does not report loan-quality figures this page can read, so this section says so rather than guess. No bad-loan figures are filed in a form this page can read, and none are guessed from the profit line. The income, margin and return sections carry what this business does report.

Gross NPA is the share of the loan book where repayments have stopped. Net NPA is what is left after the money the lender has already set aside for those loans. Falling is good; rising is a warning.

Why: loan quality drives a lender, but its details (new bad loans, recoveries, money set aside) are not in our data for this company. The sections around this one carry what we can back up.

White Mountains Insurance Group, Ltd.'s revenue was $2.9 B in FY25, +22.6% on the year before, so the loan book is growing. The latest quarter was +22.5% on a year earlier. The net margin on that income is 27.4%, +3.7 percentage points on a year ago.

We read the loan book through revenue: when the book and the businesses grow, revenue grows with them. It is only a rough guide, because interest-rate changes and fee swings can move it a few points in any year.

Interest income stands in for the size of the loan book; changes in interest rates can move it a few points in any year.

In short: a lender grows well when its loan book grows, its margin stays steady and its loans stay clean. Quarterly loan-quality figures are missing here, so revenue growth and margin are the two we watch.

White Mountains Insurance Group, Ltd.'s P/BV is 1.0×, near the high end of its own history: higher than 81% of past readings. Its usual P/BV (the middle reading) is 1.0×, over 5.3 years of weekly prices. This compares the share price with the company’s own past. It does not say what the business is worth.

For a bank or lender we compare the price with book value, the net worth on its balance sheet. P/BV is how many dollars the market pays for each $1 of that net worth. Below 1× means the market values it at less than its net worth.

Why the multiple is where it is: over the past year book value grew while the price moved +24.5%. The price ran ahead of book value, which pushed the multiple up within its own range.

Where the price move came from: over 5 years the price moved +17.0% a year; about +14.2% a year came from book-value growth and about +2.8 percentage points from the multiple (the market paying more). The split is approximate (price return minus book-value growth). It shows how much of the move came from the market paying a different multiple.

In short: the multiple is high against its own past, so the book value trend underneath matters more than the multiple.

White Mountains Insurance Group, Ltd.'s business is getting better. Profit growth hit its low 4 quarters ago at −65.8% and has recovered to +257.8%, with ROE steady at 4.6%. This is based on 12 quarters of 4 measures.

Every business is somewhere on a path of getting better or worse, and this section names where. The last 12 quarters of growth in revenue, profit and earnings per share, plus the return the business earns on its capital, are read as lines. Getting worse: the lines are falling. Turning around: a low point has just formed and the last few quarters are rising from it. Getting better: the rise from the low has lasted. Growing steadily: steady growth with healthy returns. Slowing from a peak: still high, but slowing. When the lines disagree the result is mixed; too little history means no reading. CAGR (compound annual growth rate) is the steady yearly rate that would turn the starting value into the latest one. It is the fairest way to compare growth over different periods. If the 1-year figure is much bigger than the 10-year one, recent growth is running faster than the long-run trend. A dash means there is no figure for that period, or the starting year was a loss, where a growth rate means nothing.

Why it matters: a lasting rise from a low is what this page is built to show.

Compound annual growth rate (%)

Compound annual growth rate over each period, %. Revenue, profit and EPS come from yearly figures; the stock price row is price growth over the same periods. A dash means no figure for that period, or the starting year was a loss.

White Mountains Insurance Group, Ltd. earned a return on equity of 19% in FY25. Its lowest yearly reading on file was −9% in FY21. On its assets, every $100 earned about $3.55, before the effect of borrowing. For a lender the balance sheet is the business, so the return on equity and on assets have to be read together.

Two numbers rate a bank: ROE, what it earns on shareholders’ money, and ROA, what it earns on all its assets. An ROE above about 13 to 15% is healthy; below that, net worth grows slowly.

That is above the level a bank needs to grow its net worth steadily.